US3033238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylene containers
Assignee: Commercial Solvents Corp
•
Filing: 1960-02-05
•
Granted: 1962-05-08
•
Expires: 1980-02-05
Abstract
No abstract record available.
Inventors
- 👤 John S Kosewicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:30
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C48/00; B29C48/022; B29C48/16; B29C48/18; B29C48/21; B29C48/25; B29C48/30; B29C48/32; B29C48/335; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; B29C48/03; B29C48/09; B29K; B29K2101/00; B29K2101/10; B29K2301/00; B29K2301/10; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; C08J2423/00; Y; Y10; Y10S; Y10S138/00; Y10S138/07; Y10S206/00; Y10S206/819; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31938
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
32 words
A POLYETHGYLENE PIPE SUITABLE FOR POTABLE WATER SYSTEMS WHICH COMPRISES A PIPE OF CARBON BLACK LOADED, CROSSLINKED POLYETHYLENE HAVING AN INNER LINER OF UNCROSS-LINKED POLYETHYLENE, SAID LINER BEING ABOUT 0.025 INCH THICK.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |